In this thesis, a single-page web application for the proposed Cherenkov Telescope Array (CTA) observatory was developed and reviewed in detail. A web application is the simplest, most elegant solution to the problem of open data access for teams that are not physically located at one place. All they need is a computer and internet connection to access the data and data visualizations. The CTA observatory has a plan of becoming an open observatory, with public access to the data, so a web application is a logical step in allowing open access from anywhere in the world. The entire application was built using open-source programs and libraries, using Python programming language for the back-end, and JavaScript for the frontend. The application is enabling users to visualise of telescope parameters and recorded data from the MAGIC telescopes. To visualize the data, user must select a date range, telescope, statistics and parameters of interest. Also, an analysis of the telescope parameters was done in order to try to nd relationships between them. Methods used were ordinary linear regression, RANSAC and Theil-Sen. The analysis was conducted using Python libraries for data analysis, such as Pandas, NumPy, SciPy, Sci-Kit Learn and others.